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Modern nucleon-nucleon potentials and symmetry energy in infinite matter

L. Engvik·M. Hjorth-Jensen·R. Machleidt·H. Muether·A. Polls
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Abstract

We study the symmetry energy in infinite nuclear matter employing a non-relativistic Brueckner-Hartree-Fock approach and using various new nucleon-nucleon (NN) potentials, which fit np and pp scattering data very accurately. The potential models we employ are the recent versions of the Nijmegen group, Nijm-I, Nijm-II and Reid93, the Argonne $V_{18}$ potential and the CD-Bonn potential. All these potentials yield a symmetry energy which increases with density, resolving a discrepancy that existed for older NN potentials. The origin of remaining differences is discussed.

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L. Engvik, M. Hjorth-Jensen, R. Machleidt, H. Muether, A. Polls. 1997-07-01. Modern nucleon-nucleon potentials and symmetry energy in infinite matter. https://doi.org/10.1016/s0375-9474(97)00496-x

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